Question

If the resistance of a circuit is 3 ohms, and the voltage produced by the cell in the

circuit is 12 volts, what's the magnitude of the current?
0.25 amperes
09 amperes
36 amperes
4 amperes

Answer 1

The magnitude of the current is 4A (amperes).

Step-by-step explanation:

We can use
`V=IR`, where V stands for Voltage, I stands for current, and R stands for resistance to solve this problem.

A such:

`V=12\\I=\text{ ?}\\R=3\\\\\text{Solve for I}:\\12=3I\\3I=12\\I=(12)/(3)\\I=4\text{A}`